Sea Vegetable
Porphyra yezoensis
A tier
Porphyra yezoensis (now Pyropia yezoensis) is a primary nori species of Japanese cultivation—thin red algae processed into dark green-black sheets. Flavour is toasty-marine when roasted; texture crisp then melting. Sushi and onigiri wraps; season as ajitsuke nori. Species underpins modern nori farming. Keep sheets dry until use.
Track this ingredient
Unit
Characteristics
Preparations
OnigiriRoastSushi
Traits
CrispCultivatedEssentialPrimary Nori SpeciesSheetSheet AlgaToasty Marine
Grading systems
Grades are placed along a shared scale so systems can be compared side by side.
Industrial
Standard / C
Silver / B
Gold / A
History
JP
Japanese nori cultivation and sheet making advanced with Porphyra/Pyropia species.
JP
Science of nori life cycles industrialised yezoensis cultivation.
Yezoensis-type nori dominated global sushi sheet supply.